Chara canescens and Chara filiformis were recorded in June 2009 in Lake Borken, which is situated in northern Hesse and was formed as a result of lignite mining activities. This is the first record of Chara filiformis in

Chara canescens and Chara filiformis were recorded in June 2009 in Lake Borken, which is situated in northern Hesse and was formed as a result of lignite mining activities. This is the first record of Chara filiformis in an artificial lake in Germany. Chara canescens occurs in electrolyte-poor waters.